A graft fixation system for fixing graft material in a bone tunnel
includes an expandable fixation member having a graft receiving eyelet
disposed proximate its distal end, opposed bone engaging elements
disposed about its periphery, and an expansion plug receiving opening
defined in its proximal end. The system also includes an expansion plug
having a diameter greater than the diameter of the expansion plug
receiving opening so that forceable insertion of the expansion plug into
the expansion plug receiving opening causes an expansion of the
expandable fixation member driving the opposed bone engaging elements
apart so as to fix the bone engaging elements, as well as the graft
material, in a bone tunnel.
